Stepping of multithreaded application

[Tomas Martinec]

> Hmm.  This is making me very nervous on changing GDB's
> age old behavior...  Who knows which old targets out
> there are assuming:
>
> - "Hc 0" to mean continue all threads
> - "Hc $FOO" to continue/step only thread $FOO
>
> and picking the 's' (step) thread from the previous Hg ?
>
> I fear we'd be switching from one broken behavior to
> another.  Since new stubs can just vCont, I'm now
> inclined to leave things as is.

Ok, I am fine with that.

Tomas